Hi boginspro, went to investigate the area of the well & pump for you. Re your 2nd photo:- just over the short bit of wall, a few feet down the pathway, among the grass & weeds, are 2 tall black pipes. One has a top on it, that is obviously to screw off to inspect something. Standing at that point with a copy of old photo in-hand, I think it could have been the location. I have left it with my friend up there, to try and get more info from the residents for you.